This sounds like Hotmail is blocking her address or her ISP.
"Hal" <Hal@newsgroup> wrote in message
> I'm writing on behalf of a friend who cannot send emails to any Hotmail
> Sympatico) email address.
> When she sends an email to any Hotmail address it is never received by the
> recipient. There are no errors or returned "Undeliverable" emails. This
> happened with Outlook Express 6 and now with WLM. The problem has been
> happening for several months now. Sending to other email addresses is OK.
> There doesn't appear to be any related items in the 'Blocked senders' list
> or Safe list.
> Is it an issue between WLM / OE and Hotmail?
> Any ideas? Thanks.